2008 Lexus LS 460
Mileage
171,810
Service Date
2/7/2025
Services Performed
- One code shows up in several systems. -P0031 Oxygen (A/F) Sensor heater control circuit low (B1S1)
- Perform Courtesy Inspection of vehicle and list any findings
- -Scanned all systems, one code present in several systems. -P0031 Oxygen (A/F) sensor heater control circuit low (B1S1) -Checked 15 Amp fuse for circuit, fuse is good. -Monitored live data on scan tool and observed that the voltage does not change with throttle input. -Bank 2 sensor voltage corresponds directly with throttle input. -Visually inspected connector for B1 sensor, no issues or damage found. ***Recommend replacing Bank 1 (Drivers side) upstream air/fuel ratio sensor.
- -Coolant level in expansion tank at minimum line. -Installed pressure tester on expansion tank and set to 15psi. -Cooling system holds pressure for several minutes, no signs of leakage. -Water pump pulley has slight play, no signs of leakage. -Ran vehicle for several minutes, increased RPM's slightly above idle and got plenty of heat coming for vents in cabin. ***Recommend flushing cooling system.
- Replaced drivers side up stream air/fuel ratio sensor.
- Replaced all 8 spark plugs and ignition coil boot end kits.
- Flushed cooling system with BG products.
- Replaced serpentine belt and tensioner assembly.
- Rotated tires and set pressures.
Julian D. gave our service a 5 star review on 2/7/2025
